WSALookupServiceNextW

// WS2_32.dll  (Unicode / -W)
#include <windows.h>

INT WSALookupServiceNextW(
    HANDLE hLookup,
    DWORD dwControlFlags,
    DWORD* lpdwBufferLength,
    WSAQUERYSETW* lpqsResults   // optional
);

<DllImport("WS2_32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WSALookupServiceNextW(
    hLookup As IntPtr,   ' HANDLE
    dwControlFlags As UInteger,   ' DWORD
    ByRef lpdwBufferLength As UInteger,   ' DWORD* in/out
    lpqsResults As IntPtr   ' WSAQUERYSETW* optional, out
) As Integer
End Function

' hLookup : HANDLE
' dwControlFlags : DWORD
' lpdwBufferLength : DWORD* in/out
' lpqsResults : WSAQUERYSETW* optional, out
Declare PtrSafe Function WSALookupServiceNextW Lib "ws2_32" ( _
    ByVal hLookup As LongPtr, _
    ByVal dwControlFlags As Long, _
    ByRef lpdwBufferLength As Long, _
    ByVal lpqsResults As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WSALookupServiceNextW = ctypes.windll.ws2_32.WSALookupServiceNextW
WSALookupServiceNextW.restype = ctypes.c_int
WSALookupServiceNextW.argtypes = [
    wintypes.HANDLE,  # hLookup : HANDLE
    wintypes.DWORD,  # dwControlFlags : DWORD
    ctypes.POINTER(wintypes.DWORD),  # lpdwBufferLength : DWORD* in/out
    ctypes.c_void_p,  # lpqsResults : WSAQUERYSETW* optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
WSALookupServiceNextW = Fiddle::Function.new(
  lib['WSALookupServiceNextW'],
  [
    Fiddle::TYPE_VOIDP,  # hLookup : HANDLE
    -Fiddle::TYPE_INT,  # dwControlFlags : DWORD
    Fiddle::TYPE_VOIDP,  # lpdwBufferLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # lpqsResults : WSAQUERYSETW* optional, out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "ws2_32")]
extern "system" {
    fn WSALookupServiceNextW(
        hLookup: *mut core::ffi::c_void,  // HANDLE
        dwControlFlags: u32,  // DWORD
        lpdwBufferLength: *mut u32,  // DWORD* in/out
        lpqsResults: *mut WSAQUERYSETW  // WSAQUERYSETW* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WS2_32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern int WSALookupServiceNextW(IntPtr hLookup, uint dwControlFlags, ref uint lpdwBufferLength, IntPtr lpqsResults);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_WSALookupServiceNextW' -Namespace Win32 -PassThru
# $api::WSALookupServiceNextW(hLookup, dwControlFlags, lpdwBufferLength, lpqsResults)

#uselib "WS2_32.dll"
#func global WSALookupServiceNextW "WSALookupServiceNextW" wptr, wptr, wptr, wptr
; WSALookupServiceNextW hLookup, dwControlFlags, varptr(lpdwBufferLength), varptr(lpqsResults)   ; 戻り値は stat
; hLookup : HANDLE -> "wptr"
; dwControlFlags : DWORD -> "wptr"
; lpdwBufferLength : DWORD* in/out -> "wptr"
; lpqsResults : WSAQUERYSETW* optional, out -> "wptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "WS2_32.dll"
#cfunc global WSALookupServiceNextW "WSALookupServiceNextW" sptr, int, var, var
; res = WSALookupServiceNextW(hLookup, dwControlFlags, lpdwBufferLength, lpqsResults)
; hLookup : HANDLE -> "sptr"
; dwControlFlags : DWORD -> "int"
; lpdwBufferLength : DWORD* in/out -> "var"
; lpqsResults : WSAQUERYSETW* optional, out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; INT WSALookupServiceNextW(HANDLE hLookup, DWORD dwControlFlags, DWORD* lpdwBufferLength, WSAQUERYSETW* lpqsResults)
#uselib "WS2_32.dll"
#cfunc global WSALookupServiceNextW "WSALookupServiceNextW" intptr, int, var, var
; res = WSALookupServiceNextW(hLookup, dwControlFlags, lpdwBufferLength, lpqsResults)
; hLookup : HANDLE -> "intptr"
; dwControlFlags : DWORD -> "int"
; lpdwBufferLength : DWORD* in/out -> "var"
; lpqsResults : WSAQUERYSETW* optional, out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procWSALookupServiceNextW = ws2_32.NewProc("WSALookupServiceNextW")
)

// hLookup (HANDLE), dwControlFlags (DWORD), lpdwBufferLength (DWORD* in/out), lpqsResults (WSAQUERYSETW* optional, out)
r1, _, err := procWSALookupServiceNextW.Call(
	uintptr(hLookup),
	uintptr(dwControlFlags),
	uintptr(lpdwBufferLength),
	uintptr(lpqsResults),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function WSALookupServiceNextW(
  hLookup: THandle;   // HANDLE
  dwControlFlags: DWORD;   // DWORD
  lpdwBufferLength: Pointer;   // DWORD* in/out
  lpqsResults: Pointer   // WSAQUERYSETW* optional, out
): Integer; stdcall;
  external 'WS2_32.dll' name 'WSALookupServiceNextW';

result := DllCall("WS2_32\WSALookupServiceNextW"
    , "Ptr", hLookup   ; HANDLE
    , "UInt", dwControlFlags   ; DWORD
    , "Ptr", lpdwBufferLength   ; DWORD* in/out
    , "Ptr", lpqsResults   ; WSAQUERYSETW* optional, out
    , "Int")   ; return: INT

●WSALookupServiceNextW(hLookup, dwControlFlags, lpdwBufferLength, lpqsResults) = DLL("WS2_32.dll", "int WSALookupServiceNextW(void*, dword, void*, void*)")
# 呼び出し: WSALookupServiceNextW(hLookup, dwControlFlags, lpdwBufferLength, lpqsResults)
# hLookup : HANDLE -> "void*"
# dwControlFlags : DWORD -> "dword"
# lpdwBufferLength : DWORD* in/out -> "void*"
# lpqsResults : WSAQUERYSETW* optional, out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。